I work as consultant in tax advisory in an international company. I
have MA in economics (finance and accountancy), finished another
post graduate program about EMU, and a year course about taxation.
Now I'm writing a Ph.D. thesis.
(EMU stands from European Monetary Union. Do you have any different
association? More ornithological? ;) )

Terry Pratchett
(I like a few Polish fantasy books like Antybaśnie or practically
everything that was written by Sapkowski)

Economics:
Friedman Milton: Tyranny of the status quo, Free to choose
(The best was part where Milton was comparing program of American
socialist form early XX century with legislature in seventies
(eighties?). Very interesting was to learn how many gov policies
that are supposed to help to the weakest were especially harmful
for them)

Jared Diamond: Guns, Germs, and Steel. The Fates of Human
Societies
(how to create a well working civilisation and why some failed from
this race)
Steven Pinker: The Better Angels of Our Nature: Why Violence Has
Declined
(finally someone solved conflict between Hobbes and Rousseau; After
analysing anthropological and archaeological data the conclusion is
clear: Hobbes was right)
James C. Scott: Seeing Like a State: How Certain Schemes to Improve
the Human Condition Have Failed

Biology:
Genome by Matt Ridley

Ecology:
Sceptical Environmentalist by Bjorn Lomborg
(Written by heretic fired from Greenpeace who dared to show how
ecologist manipulate (or sometimes directly make up) data)
Limits to growth by the Club of Rome (You can learn lots about
ecology from an influential book which predictions were supposed to
happen many years ago)

Music:
J. Kaczmarski (unknown outside Poland)
On my MP3 I usually listen to downloaded from the Internet lectures
from American universities. (EDIT: mostly from American)